Vacuum cleaner



3 She efs-Sheet 1 I s. M CL'ATCHIE VACUUM CLEANER mew Stanley, 7736 m i e my L 6 9 Feb. 16 1925. 1,573,772

5. MCCLATCHIE VACUUM CLEANER Original ed June: 5, 1920 s sheets-sheet 2 java 22-6 0 1* Jta wz gzaihaz nley Feb; -16 1926. Y

- v 1,573,772 M CLA I'CHIE VACUUM CLEANER original Filed June,5, 192O 3Sheets-Shet 5 750136 7726) 7 v fltanley 772a C'laicflbie Patented Feb. 16, 1 926.

Other objects and features of my improveunrrso STA res STANLEY MoCLA TIGHII E, OF STUTTGA RT, GERMANY.

VACUUM QLEANEB.

Application filed June 5, 1920, Seria No. 886,906. -Renewed March 8, 1924.

To all whom it may concern."

Be it known that I, STANLEY MoCLA'roHm, a citizen of the United States of America, and resident of Stuttgart, Germany, have invented new and useful Improvements in Vacuum Cleaners, of which the followingis a specification. I

My. invention relates to vacuum cleaning apparatus, and consists in improvements in the structure and arrangement of the dust collecting receptacle with relation. to the vacuum cleaning apparatus of which it forms apart.- Among the objects of my invention; is the provision of a dust collectng receptacle-whichmay bdreadily attached to and detached from the apparatus and emptied of dust 'collected therein. The improvements herein described may be incorporated in various forms or types of vacuum cleaning apparatus; I illustrate them in. connection with vacuum cleaning apparatus embodying other inventions of. mine whicharethe subject matter of an applicationfor United States Letters Patent filed me concurrently herewith, and serially numbered 386,903.

By means of the improvements herein described, a dust collecting receptacle is provided which has an ample opening for the reception of the dust laden blast of air produced by the vacuum cleaning apparatus.

which takes up little room when in place;

which is easily detachable and removable as a whole from the apparatus which it serves, and which may be opened out and emptied with facility.

nients will appear in theicourse of the description of the apparatus. In the drawings hereto annexed, which illustrate alternative embodiments of my improvements.

Fig-1 represents one .form of vacuum cleaning apparatus shownin elevation, partly broken away and "in section;

Fig. 2 illustrates an alternative form of apparatus, also in elevation, partly broken away and partly in-section;

Fig. 3 illustrates another alternative form in elevation, partly broken away, and partly inseCtiOn;

Fig.4 illustrates in ele ation the dust-collecting receptacle of the apparatus shown in Fig. 1, when said receptacle is elongated for purposes of emptying dust therefrom. Referring to Fig. 1., 1 represents a metallic securementsofthe dust collector. The rim .1 13 fits-within the flaring flange 12-, its in ner. portion 15 being provided with an in cylindrical motor-housing provided with an externally smooth bottom 1, "smoothly rounded lower edge 1", and a cover 2. The

housing 1 is perforated as'at 3 for the introduction of the electric cords or lead Wires the side of the housing 1, about midway from the bottom to the'top. The motor 9 is securely mounted in the interior of the housing land carries the fan shaft 10.

The draft generating fan .11 is mounted 4, this point ofentry being preferably on' onthe motor shaft, 10 and when in use is."

space between'thehousing cover 2 and the top plate 18 constituting the peripheral educt port. The motor and fan housing, for

urposes presently to be .described, is provided with a peripheral extension composed;

in the instance shown of several pieces or parts, but which as a .Whol'e constitutes a means of support for the apparatus when it is tipped to its operating -position.' The housing cover 2 is provided at) its rim with a flaring flange 12"which serves as a'guard for the fan, and also as a support fOI'ytllG wardly extending ledge or flange on which the ring 20 rests as will presently be described. The outer periphery of the ,rim 13 is rolled as at 14 so as to present a smoothly are attached to the ring 20 which. as above indicated, rests on and fits-closely within theflange' or ledge formed on the inner part 15 of the rim,13. In order to secure the rounded surface of ample radius adapted to I roll or slide easily over any surface with which it may be in contact, when, as is intended. the apparatus is tippedso as: to lie above mentioned members firmly together there are provided, in the overhanging ledge portion of the housing cover 2, a number of catches 23. These catches are manipulated by means of the short arms 24, which, as shown in the drawings, are accessible to the person using the apparatus. Thus the catches engage the extension from the top plate .18, and therethrough secure the mm 13, and dust collector 29, to the apparatus. One of these catches is associated with means for opening and closing the motor circuit so that when this catch is moved to disengage the ring 20 and rim 13, the motor circuit will be open and remain so. This is to guard against accidental starting of the motor and fan when the latter is not enclosed by the members which normally constitute this housing. One of the catch manipulating arms 24 is prolonged so as to extend into the motor housing, through an aperture provided for the purpose. This inward extension 25 carries a suitable insulated conducting strip which, when the arm 20 is turned so as to lie close to the outer periphery of the housing 1, is removed from between the contact members 26 and 27 and thus keeps the motor circuit open even though the other circuit controlling devices may be in closed circuit position. WVhen the apparatus is assembled and the ring 20 and rim 13 locked in position shown in Fig. 1 by means of catches 23, the inward extension 25 of one of these catches makes contact with the members 26 and 27 and establishes a closed circuit. 1 Y

The dust collecting receptacle 29 is of peculiar form, being substantially tubular and capable of being" telescopically folded within itself. I For this purpose the tube is preferably tapered so that the larger end or lip 30 is secured to the rim extension 13 by means of the clamping plate 22 and the smaller lip 31 is similarly secured to the plate 18 by a clamping ring 21. When sccured. in this way the two lips of the dust receptacle are concentric and provide be; tween them an annular opening which is in effect a continuation of the peripheral educt port of the fan 1.1. Tabs 32 may be provided on the dust receptacle 29 for convenience in manipulating the receptacle. It will be observed that the entire apparatus above described is symmetrically disposed about an axis coincident with that of the fan shaft 10 and'induct port 17.

When it is desired to remove the dust receptacle for emptying. the catches 23 are eliminated.

where the receptacle is to be emptied, the plate 18 is simply drawn away from the extension 13 thus telescopically unfolding the receptacle 29 to its substantially tubular from the vacuum cleaning apparatus, is

opcne(l out so' as to shake the dust therefrom, it assumes substantially theshapc shown in Fig. 4. The receptacle is referably taken away for emptying with its several parts. occupying substantially the same position or relation as that which they occupy as shown in Fig. 1, namely, with the ring 20 seated in the inturned lip of the flange 15. lVhen the receptacle is to be opened out the operator places the rim 13 on a piece of paper on the floor, holds it down with his foot, and thoroughly shakes the bag, using the flexible tube as a handle. \Vhen the dust receptacle is to be replaced on the vacuum cleaning apparatus, the tabs will be found convenient, since by means of these that ortion of the receptacle which is of larger diameter than the rest can be held up, while the tapered portion istelescopically folded within it so as to bring the ring 20 again to rest on the inner ledge of the flange 15. v

An alternative form of apparatus in which my improvements may be embodied is shown in Fig. 2. The housing for the operative parts comprises the motor casing 101 and an outer dished bottom plate 102 which may secured so as toprovide a smooth bottom.

surface for the apparatus. The bottom plate 102 is smoothly rounded upward around its periphery 103 and thence extends upward in cylindrical form to the flange at 117. The housing 101 isprovided with an aperture at 104 for the insertion of the electric cord 105 which is also led through a suitable aperture 106 into the cylindrical side of the outer housing plate. The motor casing 101"'has a suitable. cover 109, this being provided with aledge 110 which serves as a seat for the ring platelll. The motor 113 is mounted inside the cas ng 101 and carries the fan shaft 114, this fan 124 operating in. the,usual manner. The upper sur face of the cover 109 serves to house one side of thefan 124, the other side ofwhich is covered and protected by the plate 120. This plate has three or more peripheral downward so as to rest'upon'the ring 112 which is secured as by screws 122 to the cov 1; plate 115 and the '120 as by ring plate 111. The top plate 120 is pro-- vided with. a preferably lntegral tubular extension 123 which serves as an induct portor channel to the fan 124. The educt from the fan extends entirely around its periphery between the plate 120 and the ring plate 111. The plate 120 is secured as by screws 120 to the cover plate 115. This cover plate has a flange 116 which is seated .u on the flange117 and is secured thereto as y wing nuts 118. Securement of the cover-plate 115 by means of these wing nuts 118 bring the ends of the arms 121 to bear firmly on the ring 112 (and thereby holds the ring plate 111 securely seated on the ledge 110. The outer members of the above described motor and perforations at.107, 108 and 119 to allow the escape of air from the dust collecting receptacle 126. This receptacle-is generally speaking tubular in form and, like the dust receptacle shown in Fig. 1 and described above, is telescopically foldable within itself. One end 127 of this receptacle is securely clamped between the ring 112 and the ring plate 111 by means of the screws 122. The other end of the dust-receptacle 128 is clamped between the outer fan covering plate screws 120. The annular space between the motor housing 101 and the outer member 103 and 1150f the above described housing provides. the necessary room for the inflation of the dust receptacle 126 through the meshes of-which air escapes and passes out through the holes 107, 108 and 119 leaving the dust inside the receptacle.

'-A flexible tube marked 125 in Fig. 2 is secured to'the educt port extension 123 and will carry at its free end a dust inhaling nozzle.

"To remove the dust-collecting receptacle for emptying, disengage the top plate 115 the flexible tube 125 as a handle, lift the cover plate 115 withthe' inner plate 120 from the body of the housing; then insert.

a hand between the cover plate 115 and the body of the housing, grasp the ring plate 111 through the textile dust receptacle 126, and lift ring plate 111 off the ledge 110.

Then turn over the cover plate 115 so that the ring plate 111 will rest on it together with the dust receptacle 126. To empty, turn the cover plate 115 over, and let the ring plate 111 fall extending the receptacle to substantially tubular form and discharge the collected dust.

Still another alternative form in whichmy improved dust-receptacle may be embodied, is shown in Fig. 3. Here 201 represents the motor casing; 202 the aperture for the substantially fan housing are provided with loosening the wing nuts 118; then, using the apparatus,

ing a rotary fan,

electric cord, 203 the electric cord,'20 l a peripherally extending top or cover for-the motor casing, .205 an upwardly extending flange preferably integralaviththe top 204; 206 is a fan mounted on the motor'shaft 207. The cover plate 208 is provided with radial extensions 209, which are joined at their outer ends by the ring 210, between which and the plate 208 is the space which consti-. tutcs the peripheral educt from the fan 206. An axial tubular extension 216 from the plate/208 provides the central induct port for the fan, and also means for detachably securing the flexible tube 217.

In the form of apparatus shown in Fig. 3, the dust-collecting receptacle 212 is, as in'thc other examples described, a bag' which is tubular and telescopically folded upon itself. In this case, however, the smaller end of the tubular receptacle is of relatively much less diameter than those of the other examples herein shown, and is of a size adapted to fit closely over the end. of a flexible tube 217, to which it-is firmly clamped as by means of a spiral spring 215,

which holds the small end 213 of thereceptacle 212 onto theend of the flexible tube. The other and larger end of the receptacle 212 is shown at 214, clampedagainst the ring 218 by means of a ring 211,.

To remove and empty the receptacle2l2 the large end of the bag with 'ts clamping rings is removed from the flaiige 205 and the flexible tube 217 pulled ofi'- the tubular extension 216. Receptacle 212 is then taken, together with the flexible tube 217, to the place where the dust is to be emptied, the receptacle is unfolded from within itself, and the dust shaken out. To replace the receptacle on the vacuum cleaning apparatus, the flexible tube 217 is reattached to the extension 216', and ring 218 is again slipped on over flange 205.

In the several forms of apparatus herein illustrated, the flexible tube, and the dust collector, are removable in assemblage from and replaceable thereon'likewise in assemblage. The annular securement for. the dust collector, when removed therewith insuch assemblage serves to distend the mouth. of the dust collector and facilitates removal of the dust.

' I claim: r

1. Vacuum cleaning apparatus comprisan axialinduct to said fan, and. an educttheref'rom disposed about the periphery of the fan, a tubular dust-collecting bag adapted to fold teles' opically within itself, one end of said bag detach-ably secured aroundone side of said peripheral tan educt, the other end similarly secured around the other side of said educt, the bag adapted to be unfolded to Straight tubular form when detached from said educt.

2. Vacuum cleaning apparatus, comprising a rotary fan, a plate at one side of said 'fan, a ring adapted to surround said fan and spaced therefrom, and from said plate, to form a peripheral eductfor the fan, said plate and ring detachably secured in said positions relatively to the fan, a tubular dust rollecting bag adapted to fold telescopically within itself, one end of said bag secured to said plate, the other secured to said ring, the bag adapted to be unfolded to straight tubular form when said plate is removed from said ring.

3. Vacuum cleaning apparatus, comprising a rotary fan, a motor therefor, a motor casing, a plate at one side of said fan, a ring adapted to surround said fan and spaced therefrom and from the plate, to form a peripheral educt for the fan, means on the motor casing to secure said ring and plate in said positions relatively to the fan, a tubular dust-collecting bag adapted to fold telescopically Within itself, one end of said bag secured to said plate, the other secured to said ring; the ba adapted to be unfoldetl to straight tubular form when the said plate is removed from said ring.-

4. Vacuunrcleaning apparatus, comprising a rotary fan, a cover plate for one side of said fan, provided with an axial induct thereto, a ring adapted to surround said fan andspaced therefrom and from said plate, to form a peripheral educt for the fan, said plateand ring detachably secured in said positions relatively to the fan, a tubular dust-collecting bag adapted to fold telescopically-within itself, one end of said bag secured to said cover plate, the other secured to said ring, the bag adapted to be unfolded to straight tubular form when said cover plate is removedfrom. said ring? 5. Vacuum cleaning apparatus, comprising a rotary fan, a'motor therefor, a motor casing, a cover plate for one side of said fan provided with an axial induct thereto, a ring adapted tosurround said fan and spaced therefrom and from the cover plate to form a peripheral educt, for the fan, means on the motor casing to secure said ripg and plate in said positions relatively to the fan, a tubular dust-collecting bag adapted to fold telescopically within itself, one end of said bagsecured to the COVER plate, the other secured to said ring, the bag adapted to be unfolded to straight tubular form when the cover plate is removed I from said ring. g,

6. In a vacuum cleaning apparatus, the combination of a fan, a housing providing an axial induct and peripheral educt for said fan, a dust-collecting receptacle of flexible material, telescopically foldable within itself and substantially tubular when extended, one end of said receptacle secured to said housing at one side of the peripheral fan-educt, the other end secured fastening means.

to the housing at the other side of the pe ripheral fan-educt, the receptacle removable as a whole from said fan with a part of the housing normally on the induct side of the fan, and adapted to be extended to substantially tubular fornr,

7 In vacuum cleaning apparatus, the combination of a fan, a housing providing an axial induct and peripheral educt for the fan, a flexible tube communicating with said induct, a dust-collecting receptacle of flexible material, telescopically foldable within it:;elf and substantially tubular when extended, one end of said receptacle secured at one side of the peripheral fan-educt, the other end secured at the other side of the peripheral fan educt, said receptacle removable as a whole from the fan together with the flexible tube and adapted when so removed to be extended to substantially tubular form.

8. In vacuum cleaning apparatus, the combination of a fan and housing therefor adapted to discharge the fan blast about its periphery, a dust collector, means to secure the ends thereof circuni'ferentially of the fan at either side of the fan, said securing means and the dust collector being removable as a unit from the apparatus,

9. In vacuum cleaningapparatus, the combination of a, fan and housing therefor adapted to discharge the fan blast about its periphery, a dust collector and annular se curements for the ends thereof'at either side of the fan, one of said securements encircled by the other, and both with the dust collec- "tor being removable as a unitfrom the apparatus.

10. In vacuum cleaning apparatus, the combination of a' fan and housing therefor adapted to discharge the fan blast about its periphery, a top plate enclosing one side of the fan, a ring supporting said top plate, a rim,supporting said ring, means to engage said ring, and therethrough said rim, to, bind both tothe apparatus, a dust collector secured at one end circumferentially of said top plate, at the other circumferentially of said rim, the dust collector, top plate,

and rim removable as a unit fromthe apparatus upon release of said ring.

11. In vacuum cleaning apparatus, the combination of a fan and housing therefor adapted to discharge the fan blast about its periphery, a top plate enclosing one side of x the fan, a rim encircling-the fan, an extension from the top plate engaging said rim, fastening means securing said extensipn and therethrough said rim to bind both to the a riparatus, ajdust collector secured at one end circumferentially of-said top plate, at the other circumferentially of said rim, the dust collector, top plate and rim removableas a unit from the apparatus upon releaseof said 12. In vacuum cleaning apparatus, thecombination of an electrlc motor, fan, an

housing therefor adapted to discharge'the fan blast about its periphery, a dust collector and securements for the ends thereof at either side ofthe fan, said 'securements and the dust collector being removable as a unit, movable fastening means on the apparatus, engaging said dust-collector securements, and a circuit-breaker operated by said fastening means to break circuit when the dust collector is released.

13. In vacuum cleaning apparatus the combination of a fan and housing therefor to discharge the fan blast about its periphery, an annular guard on the apparatus spaced from and surrounding the fan, a

top plate enclosing one side 'of the fan, a rim resting within said annular guard, an extension rom thetop plate engaging said rim, fastening means on the apparatus, engaging saidl extension and therethrough binding the rim to the guard, a dust collector secured at one end circumferenti ally'to the top plate and at the other circumferentially to the rim, said dust collector, top plate, and rim being removable as a unit from the apparatus upon release of said fastening means;

14:. In vacuum cleaning apparatus, the

combination of a fan and housing,therefor,'.

adapted to discharge the fan blast about its periphery, a flexible tube, a dust collector circuniferentially attached at either side of said fan, said dust collector and flexible tube being separable in assemblage, from the apparatus. I

15. A vacuum cleaner comprising, in combination, a portable casing having a fan and motor therein and adapted to roll freely on the floor and a length of hose connected axially to said casing and adapted to have,

a working tool secured thereto, said hose constituting the sole handle for said casing.

16. A vacuum cleaner comprising, in com-' bination, a portable casing havlng a fan I and motor therein and adapted to lie diand tip bodily rectly on the floor, and a suction hose atd tached to said casing and having the double function of constituting a connection for a cleaner tool and a handle for said casing, the portion of said casing which rests I on the floor whlle said cleaner is being used having a rounded shape to permit it to roll to accommodate itself to theabout the axis of the motor and having a plurality of air discharge openings opposite the edge of the fan and in line with the air discharge thereby. v

19. A vacumn'cleaner, comprising a hose and a casing formed as a surface of revolution about the axis of said hose, amotor and a fan in said casing and a dust separa'tor; carried by said casing, said casing adapted to roll freely on the floor while the cleaner is in usejand a portion of the casing nearestsaid hose being of greater diamfiter ose,

than the. portion furthest from the whereby said casing may assume a position with its axis oblique to the floor on which it lies.

20. A vacuum cleaner comprising a hose and a casing of rounded shape fastened to one end thereof, said casin adapted to roll freely on the floor and aving an enlargement near th; hose end defining a circumferential rece s and a flexible electric cord leading from said recess.

Signed by me at Boston, Mass, this 28th day of May, 1920.

STANLEY MQCLATCHIE. 

